
function main() {
  const canvas = document.getElementById('webgl');
  if (!canvas) {
    console.log('Field to get element by id');
    return false;
  }
  const gl = canvas.getContext('webgl');
  gl.clearColor(0.2,0.3,0.4,1);
  gl.clear(gl.COLOR_BUFFER_BIT);
  console.log(gl);
}